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V(0) and V(E) represent the velocities, ...

`V_(0)` and `V_(E)` represent the velocities, m0 and mE the refractive indices of ordinary and extraordinary rays for a doubly refracting crystal. Then

A

`V_o ge V_E, mu_o le mu_E` if the crystal is calcite.

B

`V_0 le V_E, mu_0 le mu_E` if the crystal is quartz.

C

`V_0 le V_E, mu_0 ge mu_E` if the crystal is calcite.

D

`v_0 ge V_E, mu_0 ge mu_E` if the crystal is quartz.

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The correct Answer is:
C
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